Way late on this one, but here's a third option from Meca Systems:

http://www.rallymanagementservices.com/collections/ktm-690-enduro-r/products/radiator-protector-screen-ktm-690e-r

I just got one last week. It's pretty wide open, and rather light. I haven't installed it yet, but it should only take a couple seconds.

I ALSO bought their radiator protector bars. Currently frustrated with figuring out how those go together...